Organ That Fills With Waste Fluid
This page is the CodyCross answer for the clue below from Amusement Park, Group 218, Puzzle 2 (Live Entertainment).
Question is: Organ That Fills With Waste Fluid
and the answer is: BLADDER
Word Meaning:
BLADDER — (zoology) A flexible sac that can expand and contract and that holds liquids or gases.
Definitions from Wiktionary.